Deselect All

It is used for deselecting all the selected objects.

Select some objects.

Click the Deselect All button from toolbar.

All the selected objects will be deselected.

Deselecting Some Certain Objects

You have selected all the objects.

You are in any mode. E.g. click axis button.

Click Deselect All button from the assist menu.

Only the axes will be deselected.

Deselect All button.